Title :
Phased Array Ultrasonic Non-Destructive Evaluation of ITER Plasma Facing Components
Author_Institution :
Acoust. Ideas, Wakefield
Abstract :
The walls of ITER are to be lined with thousands of plasma facing components (PFCs) consisting of a CuCrZr heatsink joined to Be armor tiles on the reactor side and to a stainless steel 316LN strongback on the opposite side. Imperfections in the joints of just one in-service PFC have potentially disastrous consequences to reactor operation; it is therefore imperative to assure quality by nondestructively evaluating the integrity of PFC joints during manufacture. Phased array ultrasound is an excellent candidate for this purpose. A background in phased array ultrasonics is presented along with recent experimental results on mockups.
Keywords :
Tokamak devices; chromium alloys; copper alloys; fusion reactor instrumentation; fusion reactor materials; fusion reactor operation; heat sinks; stainless steel; ultrasonic materials testing; zirconium alloys; CuCrZr; FeCrCJk; ITER plasma facing components; International Thermonuclear Experimental Reactor; PFC joints; beryllium armor tiles; fusion reactor materials; heatsink; phased array ultrasonic nondestructive evaluation; phased array ultrasound; reactor operation; stainless steel 316LN; Fingers; Inductors; Inspection; Manufacturing; Phased arrays; Plasma materials processing; Steel; Tiles; Ultrasonic imaging; Water heating; ITER; NDE; PFC; inspection; phased array; plasma facing; ultrasound;
Conference_Titel :
Fusion Engineering, 2007. SOFE 2007. 2007 IEEE 22nd Symposium on
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-1193-1
Electronic_ISBN :
978-1-4244-1194-8
DOI :
10.1109/FUSION.2007.4337883
